.kiseki-back-nav {
	position: fixed;
	right: 20px;
	bottom: 20px;
	z-index: 1000;
	margin: 0;
	padding: 0;
}

.kiseki-back-link {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 10px 18px 10px 14px;
	font-size: 13px;
	line-height: 1;
	color: #fff;
	text-decoration: none;
	background: rgba(55, 55, 55, 0.9);
	border: 1px solid rgba(255, 255, 255, 0.12);
	border-radius: 999px;
	box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
	font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
	transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
}

.kiseki-back-link:hover {
	background: rgba(30, 30, 30, 0.95);
	box-shadow: 0 6px 20px rgba(0, 0, 0, 0.28);
	transform: translateY(-1px);
	color: #fff;
}

.kiseki-back-icon {
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	opacity: 0.9;
}

.kiseki-back-text {
	letter-spacing: 0.04em;
	white-space: nowrap;
}

@media (max-width: 768px) {
	html {
		-webkit-text-size-adjust: 100%;
	}

	body {
		overflow-x: hidden;
	}

	table {
		max-width: 100% !important;
		width: 100% !important;
	}

	td, th {
		max-width: 100%;
	}

	img {
		max-width: 100% !important;
		height: auto !important;
	}

	hr {
		max-width: 100% !important;
		width: 100% !important;
	}

	.kiseki-back-nav {
		right: 14px;
		bottom: 14px;
	}

	.kiseki-back-link {
		padding: 9px 14px 9px 11px;
		font-size: 12px;
	}
}